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Method for preparing oxide dispersion strengthen (ODS) high-temperature alloy pipe

A high-temperature alloy and ODS technology, applied in the direction of reducing greenhouse gases, metal material coating technology, ion implantation plating, etc., can solve the problems of difficulty in obtaining various pipe diameters and wall thicknesses, low efficiency, and complicated processes, and achieve Excellent high-temperature mechanical properties, simple process, and uniform wall thickness

Inactive Publication Date: 2012-10-31
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to solve the problems of complex process, low efficiency and difficulty in obtaining various pipe diameters and wall thicknesses in the existing method for preparing nuclear fuel cladding ODS alloy pipes, and proposes a preparation method for ODS superalloy pipes

Method used

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specific Embodiment approach 1

[0018] Specific embodiment one: the preparation method of a kind of ODS superalloy pipe in this embodiment is carried out according to the following steps:

[0019] 1. Clean the outer surface of the base tube: the base tube is made of ceramic, metal or soluble salts. For the base tube made of ceramic and metal, under the condition of ultrasonic power of 150W~200W, first clean it with acetone for 10min~20min, and then Wash with absolute ethanol for 8min~12min, after drying, install it on the fixed base frame of the electron beam physical vapor deposition equipment; On the fixed base frame in the electron beam physical vapor deposition equipment, wherein the ODS superalloy tube prepared by the electron beam physical vapor deposition equipment has an outer diameter of 15 mm to 150 mm, a wall thickness of 0.1 mm to 8 mm, and a length of less than 500 mm;

[0020] 2. Preparations before electron beam physical vapor deposition: Put the alloy ingot and oxide powder into different cru...

specific Embodiment approach 2

[0028] Embodiment 2: The difference between this embodiment and Embodiment 1 is that in step 1, under the condition of ultrasonic power of 160W-190W, first wash with acetone for 12min-18min, and then wash with absolute ethanol for 9min-11min. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0029]Embodiment 3: The difference between this embodiment and Embodiment 1 is that in step 1, under the condition of ultrasonic power of 175W, first wash with acetone for 15 minutes, and then wash with absolute ethanol for 10 minutes. Other steps and parameters are the same as those in Embodiment 1.

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Abstract

The invention relates to a method for preparing an oxide dispersion strengthen (ODS) high-temperature alloy pipe. The problems that in prior methods for preparing nuclear fuel cladding ODS alloy pipes, the process is complex, the efficiency is low and pipes with various diameters and various wall thicknesses are difficult to obtain are solved. The method comprises steps of cleaning the outer surface of a base pipe; conducting preparation work before electron beam physical vapor deposition; and depositing the ODS high-temperature alloy pipe. By the aid of the method, ODS high-temperature alloy pipes with various diameters and various wall thicknesses are prepared. The method can be applied to preparation of nuclear fuel cladding materials of supercritical water reactor in a nuclear power system and preparation of other components which are used under high-temperature environments.

Description

technical field [0001] The invention relates to a preparation method of an ODS superalloy pipe. Background technique [0002] Energy issues have increasingly become a common crisis facing the world's development. Under the dual pressure of energy demand and environmental protection, nuclear energy is one of the important ways to solve my country's energy issues in order to ensure the sustainable development of the national economy. Supercritical Water Reactor (SCWR), as the only advanced water-cooled reactor in the fourth-generation new nuclear energy system, has many comprehensive advantages in economy, engineering technology continuity and sustainability. It is a high-power pressurized water reactor. The inevitable trend of stack technology development. [0003] Supercritical water reactors operate under the conditions of ultra-high pressure, high temperature and intense neutron irradiation. Such extreme working conditions have brought new challenges to traditional nuclea...

Claims

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Application Information

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IPC IPC(8): C23C14/30C23C14/14G21C3/07
CPCY02E30/40Y02E30/30
Inventor 赫晓东宋广平孙跃李明伟林秀赵轶杰何飞
Owner HARBIN INST OF TECH
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